Description

Tetraarsenic Trisulfide is an inorganic compound with the chemical formula As4S3. This material is valued in industrial and research settings for its specific chemical properties and role as a precursor in advanced material synthesis. It is primarily sought by manufacturers and laboratories involved in the development of specialized semiconductors, infrared-transmitting glasses, and other high-tech materials. Our supply ensures high purity and batch-to-batch consistency critical for these demanding applications.

Application

• Semiconductor Manufacturing: Used as a dopant source or precursor material in the fabrication of III-V compound semiconductors.
• Infrared Optics: A key component in the formulation of chalcogenide glasses for lenses, windows, and optical fibers that transmit in the infrared spectrum.
• Pigments and Dyes: Employed in the production of specialized, high-stability yellow and orange pigments for ceramics and glass.
• Chemical Synthesis: Serves as a starting material or reagent in the synthesis of other arsenic-sulfur compounds and coordination complexes.
• Research & Development: Utilized in academic and industrial R&D for studying the properties of arsenic chalcogenides and exploring new material applications.
• Pyrotechnics: Acts as a component in certain pyrotechnic mixtures to produce specific visual effects, subject to strict regulatory controls.

Basic Information

Product Name	Tetraarsenic Trisulfide
CAS No.	12512-13-9
Molecular Formula	As4S3
Molecular Weight	427.95 g/mol
Synonyms	Arsenic Sesquisulfide; Diarsenic Trisulfide; Arsenic(III) Sulfide; Arsenous Sulfide; Realgar (mineral form); Ruby Arsenic; Red Arsenic Sulfide; As4S3
EINECS	235-720-6

Quality Control

Our Tetraarsenic Trisulfide is produced and tested under stringent quality management protocols. Each batch is analyzed to ensure it meets precise chemical and physical specifications, with a typical purity of 99.9% (3N) or higher available. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile (including heavy metals), and physical characteristics is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and organic solvents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Orange-red to red powder or crystals
Identification (IR)	Conforms to standard
Assay (As4S3)	≥ 99.9%
Insoluble Matter	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 5 ppm
Particle Size (D50)	Customizable (e.g., < 45 µm)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.